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Please, no more posts of air box mods.

Discussion in '4 Stroke Air Intake' started by UP Michigan rider, Oct 22, 2015.


  1. MrSled

    MrSled Administrator Staff Member Admin Moderator VIP Member

    Messages:
    19,369
    Location:
    Schofield, WI
    Country:
    USA
    Snowmobile:
    2020 Sidewinder SRX

    I am sure he had his reason... maybe it was just to wake us up :)
     
  2. UP Michigan rider

    UP Michigan rider Expert

    Messages:
    241
    Location:
    Central U.P.
    Country:
    USA
    Snowmobile:
    2012 Apex XTX
    Modern Airbox for motorcycles/snowmobiles need to be "sealed" per say because they are "tuned" to create high and low air pressure in direct relation of the opening and closing of the valves. If you screw up the "tune" your pressure could be wrong when the valves are open / shut. Modern airboxes are 1000% different then the old ones that just hold your air filter and don't care if you punch a hole in it. You can not punch a hole in a modern, tuned, Helmholtz resonator, airbox or "air compressor" tank if you will.
     
  3. 4Fighter

    4Fighter TY 4 Stroke God

    Messages:
    1,793
    Location:
    Sault, MI
    Country:
    USA
    Snowmobile:
    '07 Attak GT
    No no, all you have to do is turn the cover upside down.

    Sent from my SAMSUNG-SGH-I727 using Tapatalk
     
    maxdlx and MrSled like this.
  4. steiner

    steiner Moderator Staff Member Moderator Lifetime VIP Member VIP Member

    Messages:
    3,798
    Location:
    Niverville MB Canada
    LOL
     
  5. Irish_Sledhead

    Irish_Sledhead Newbie

    Messages:
    18
    Location:
    Michigan
    Country:
    USA
    Snowmobile:
    09 Apex RTX
    I think you might want to think about your proof after watching this...



    Enjoy! :home:
     
    Nemesis6 and MrSled like this.
  6. Darren Betker

    Darren Betker Expert

    Messages:
    275
    Location:
    Dryden
    Country:
    Canada
    Snowmobile:
    apex gt
    Pretty damn expensive 10hp. Not worth it in my book.
     
  7. steiner

    steiner Moderator Staff Member Moderator Lifetime VIP Member VIP Member

    Messages:
    3,798
    Location:
    Niverville MB Canada
    Then don't worry about.
     
    MrSled likes this.
  8. Darren Betker

    Darren Betker Expert

    Messages:
    275
    Location:
    Dryden
    Country:
    Canada
    Snowmobile:
    apex gt
    Dont worry. Iv alreafy forgotten.
     
  9. UP Michigan rider

    UP Michigan rider Expert

    Messages:
    241
    Location:
    Central U.P.
    Country:
    USA
    Snowmobile:
    2012 Apex XTX
    Funny video, if you have ADD skip to about 0:45

     
  10. Darren Betker

    Darren Betker Expert

    Messages:
    275
    Location:
    Dryden
    Country:
    Canada
    Snowmobile:
    apex gt
    Concerning this bike video. I agree that modding the airbox just willy nilly poppin holes here and there isnt smart.....but its been proven for over a half century or more that more air = more power so i would buy a mod to my airbox that has been dyno proven to help like adding a k&n filter or adding the d&d bullseyes. But just adding holes everywhere......ya no. So with that said.....looks like igotto either spend big bucks or leave it well enough alone.
     
    radianguy likes this.
  11. steiner

    steiner Moderator Staff Member Moderator Lifetime VIP Member VIP Member

    Messages:
    3,798
    Location:
    Niverville MB Canada
    If you want to do some air/fuel mods on the cheap PM me. I have access to some good used parts that have not been listed as of yet.
     
    slowride06er likes this.
  12. Sasquatch

    Sasquatch Lifetime Member Lifetime VIP Member VIP Member

    Messages:
    3,699
    Location:
    North Western Ontario
    Country:
    Canada
    Snowmobile:
    Yamaha's
    Say what?
     
  13. steiner

    steiner Moderator Staff Member Moderator Lifetime VIP Member VIP Member

    Messages:
    3,798
    Location:
    Niverville MB Canada
    You can PM me as well if you like.
     

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